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Finding the Fourth Proportional to 6,279.56, 8,664.34 and 3,626.48

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Solution

The fourth proportional to 6,279.56, 8,664.34 and 3,626.48 is: 5,003.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.56 : 8,664.34 = 3,626.48 : x
  2. Step 2: Convert to fraction form
    6,279.56/8,664.34 = 3,626.48/x
  3. Step 3: Cross multiply
    6,279.56x = 8,664.34 × 3,626.48
  4. Step 4: Simplify right side
    6,279.56x = 31,421,055.72
  5. Step 5: Solve for x
    x = 31,421,055.72/6,279.56
  6. Step 6: Final answer
    x = 5,003.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.